what is a razor file

Hi vivaan,

Thank you for reaching out to Microsoft Q & A forum.  

A Razor file in ASP.NET Core combines HTML and C# code, allowing developers to build dynamic web pages or user interface components.  Files with the .razor extension are used in Blazor applications, while .cshtml files are used in Razor Pages or MVC apps.  When the training mentions "a Razor file," it refers to a file that defines part of the app’s UI logic using Razor syntax. 

For more information about Razor syntax and how it’s used in ASP.NET Core, please refer to the following documentation: 

1.Razor syntax overview: 

https://learn.microsoft.com/en-us/aspnet/core/mvc/views/razor 

2.Razor Pages: 

 https://learn.microsoft.com/en-us/aspnet/core/razor-pages/ 

3.Blazor components (.razor files):  

https://learn.microsoft.com/en-us/aspnet/core/blazor/components    

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